Baissea. | LXXXIV. APOCYNACEE (STAPF). 209 
in Hook. Ic. Pl. t. 2342; K. Schum. in Engl. & Prantl, Planzenfam. 
iv. li. 172; Huain Bull. Soc. Linn. Paris, 2 sér. i. 10. 
Upper Guinea. Southern Nigeria: by the Old Calabar River, Mann, 2258 ! 
Cameroons : Bipinde, Zenker, 1056! 1902! 
Lower Guinea. Gaboon: Libreville, Klaine, 89! and without precise 
locality, Klaine, 811! Corisco Bay ; Muni (Danger) River, Mann, 1756! 
7. B. Tholloni, Hua in Bull. Soc. Linn. Paris, 2 sér. i. 10. 
Leaves lanceolate, acutely acuminate, the upper up to 2 in. long, 3 in. 
broad, papery, quite glabrous except in the nerve-axils ; secondary nerves 
very oblique, 6~7 on each side, slightly raised below; transverse veins 
horizontal, delicate; pedicels slender, up to 2 lin. long. Cymes few- 
flowered, terminal and axillary, gathered in lax leafy panicles, loosely 
pubescent in the upper part; peduncles filiform, glabrous, up to 3 in. 
long; bracts small, lanceolate to subulate ; pedicels 2 lin. long. Calyx 
1 lin. long, very sparingly pubescent, eglandular. Corolla-tube sub- 
campanulate, 24 lin, long, sparingly and minutely puberulous without ; 
throat glabrous ; supra-staminal calli distinct, much projecting ; lobes 
linear, very narrow and acute, 5 lin. long. Anthers not quite 1 lin. 
long, hairy on the back. Ovary quite glabrous; style obconical, 
minutely papillose ; stigma subcampanulate, with a short bifid 
apiculus, 
Lower Guinea. French Congo: by the River Ogowe, Thollon, 852! 
8. B. angolensis, Stapf in Kew Bulletin, 1894,126. A graceful 
and rather weak but tall climber with drooping branches, 4~7 ft. long ; 
young branches minutely pubescent, hairs rather persistent. Leaves 
elliptic-oblong, shortly and acutely acuminate, rounded at the base, 
1-2} in. long, }-1 in. broad, subcoriaceous, minutely pubescent on the 
herves in a very young state, soon glabrous except in the nerve-axils, 
secondary nerves 4—5, rarely 6; transverse veins rather inconspicuous ; 
petiole 1 lin. long. Cymes in terminal or in terminal and lateral 
slender raceme-like or pyramidal panicles, minutely pubescent ; rhachis 
and branchlets filiform ; bracts lanceolate to subulate, 1-14 lin. long ; 
pedicels up to 14 lin. long. Calyx minutely pubescent, 1 lin. long ; 
Sepals ovate-lanceolate, subacute, eglandular. Corolla white, tinged 
with pink, very sweet-scented, subcampanulate ; tube minutely puberu- 
ous without, villous in the throat, 2-24 lin. long ; supra-staminal calli 
short, ovate; lobes lanceolate from an ovate auriculate base, acuminate, 
3-4 lin. long. Anthers reaching beyond the middle of the corolla-tube, 
lin. long, glabrous or very sparingly hairy on the back. Carpels 
puberulous at the top; style obconic-cylindric, minutely puberulous. 
Stigma campanulate with a short bifid apex.—Hiern in Cat. Afr. PI. 
Welw. i. 675; Hua in Bull. Soc. Linn. Paris, 2 sér. i. 10. 
: Lower Guinea. Angola: Golungo Alto; by thickets on slopes along the 
Cuango rivulet, rather rare, Welwitsch, 5967 ! 
Guerkea congolana, De Wild. & Durand in Comptes-rendus Soc. Bot. Belg. 
XXXviii. 94, collected by Capt. Cabra on the Lower Congo may belong to this species. 
VOL, Iv, 6 
